Load carrying supporter

ABSTRACT

[Object of the Invention] 
     To decrease the load applied to a spine so as to prevent and treat lumbago, when carrying various shapes of goods with hands. 
     [Solution] 
     A load carrying supporter used for carrying goods by hands, comprising an attachment attached to a worker&#39;s body and a load supporter fixed to the attachment. The attachment attached around the worker&#39;s waist, and the load supporter has a high frictional resistance material facing outward from the worker&#39;s body. Most of the load is lead to the waist and the distance between the loading point and the spine becomes small. Therefore the pressure and the bending moment on the spine become very small.

CROSS-REFERENCE TO RELATED APPLICATIONS

I claim the benefit of priority of Japanese patent application No.

-   -   2015-143528 (filed on 19 Jul. 2015),     -   2015-169899 (filed on 30 Aug. 2015),

TECHNICAL FIELD

This invention relates generally to a load carrying supporter used to assist carrying goods with hands.

BACKGROUND ART

As shown in the FIG. 4 PRIOR ART, the load is applied to hands, arms, shoulders and a spine when carrying the goods.

This load applied to the spine many times causes lumbago. Japanese suspension rate from work caused from lumbago is 24.5% reported in 2011. The economic loss of U.S.A. is 7,000,000,000 dollars per year reported in 2013.

Heretofore, there are various types of load carrying supporter which intends to decrease the load applied to hands, arms, shoulders and a spine listed as follows.

CITATION LIST Patent Literature

-   [PTL 1] JP(Open)2005-279222 -   [PTL 2] JP(Open)2011-229698 -   [PTL 3] JP(Open)2012-85874 -   [PTL 4] JP(Open)2013-91566 -   [PTL 5] JP(Utility Model Registered)3112686

SUMMARY OF INVENTION Technical Problem

The prior arts disclosed by the above patent literatures, show a shelf supported by a waist belt. The load is applied to a waist through the shelf and the waist belt. By these arts, the bottom edge of the goods to be carried must be lifted up to the shelf situated at the waist position.

This means that the vertical travel of the goods from the ground to the waist position is high. And in case of the tall goods, it is unstable to carry the goods at too high position.

Also the structures of these prior arts are bulky and project outside from the body of workers, and disturb the movements of them.

Solution to Problem

A load carrying supporter used for carrying goods by hands comprising; an attachment attached to a worker's body; and

a load supporter fixed to the attachment, wherein the attachment attached around the worker's waist, and the load supporter has a frictional resistance material facing outward from the worker's body.

Above load carrying supporter, wherein the frictional resistance material has a higher frictional resistance coefficient than 0.6.

Above load carrying supporter, wherein the frictional resistance material favorably has a higher frictional resistance coefficient than 1.0.

Above load carrying supporter, wherein the frictional resistance material most favorably has a higher frictional resistance coefficient than 1.6.

Above load carrying supporter, wherein the frictional resistance material is selected from the group of soft plastics such as vinyl chloride, polyester, elastomer, synthetic rubber, silicone rubber, urethane rubber or natural rubber.

Above load carrying supporter, wherein an anti-slip process is added to the frictional resistance material.

Above load carrying supporter, wherein the anti-slip process includes micro foam.

Above load carrying supporter, wherein the load carrying supporter is applied to a waist belt.

Above load carrying supporter, wherein the load carrying supporter is applied to a waist porch.

Above load carrying supporter, wherein the load carrying supporter is applied to a corset.

Above load carrying supporter, wherein the load carrying supporter is applied to an apron.

Above load carrying supporter, wherein the load carrying supporter is applied to clothes.

Advantageous Effects of Invention

Based on above mentioned invention, it becomes possible to decrease the load applied to the hands, arms, shoulders and the spine, when carrying various shapes of goods.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a perspective view of the first embodiment of this invention.

FIG. 2 is a front view of the first embodiment of this invention.

FIG. 3 is an AA cross section of FIG. 2.

FIG. 4 is a side view to show the function of the invention comparing with the prior art.

FIG. 5 is a front view of the second embodiment of this invention.

FIG. 6 is a front view of the third embodiment of this invention.

FIG. 7 is a front view of the modified third embodiment of this invention.

FIG. 8 is a front view of the fourth embodiment of this invention.

FIG. 9 is a front view of the fifth embodiment of this invention.

FIG. 10 is a side view and the front view of other way of using this invention.

FIG. 11 is a method of measuring the frictional resistance coefficient.

FIG. 12 is a front view of the sixth embodiment of this invention.

FIG. 13 is a front view of the seventh embodiment of this invention.

DESCRIPTION OF EMBODIMENTS

Referring to FIG. 1, FIG. 2, and FIG. 3, the first embodiment of the invention is shown. A load carrying supporter 10 used for carrying goods by hands comprises an attachment 20 attached to a worker's body and a load supporter 30 fixed to the attachment 20. The attachment 20 is attached around the worker's waist 81, and the load supporter 30 has a frictional resistance material 32 facing outward from the worker's body. The waist 81 includes a lower back, a belly and a part around the pelvis of the worker's body.

The attachment 20 has a belt 21 made of a flexible material such as fiber, rubber or soft plastics, and a first connector 22 and a second connector 23 fixed at the both end thereof. The belt 21 is attached surrounding the waist 81. The first connector 22 and the second connector 23 have loop and hook fastener so that the adjusting is easy.

The load supporter 30 has a base 31, the frictional resistance material 32 and a support connector 33 fixed on the base 31. The frictional resistance material 32 is a sheet or cloth made from the group of soft plastics such as vinyl chloride, polyester, elastomer, synthetic rubber, silicone rubber, urethane rubber or natural rubber.

An anti-slip process may be made on the frictional resistance material 32.

The anti-slip process is micro bubble or unevenness made by a mechanical or heat foaming. For example, 10 micro or 20 micro capsules are mixed into the frictional material 32 and heated at 120 degree centigrade.

The other method of anti-slip process is small suckers made on the surface of the frictional resistance material 32. High frictional resistance paint may be coated.

The frictional resistance material 32 is situated parallel to the surface of the waist, facing outwardly.

The support connector 33 may be opened downwardly as shown by FIG. 3. E, and may slide along the belt 21.

Referring to FIG. 4, the function of this invention is explained. In case of the prior art, the load W is applied to hands 85, arms 84, shoulders 83 and a spine 82. This means that not only the pressure but the bending moment on the spine 82 is big because the distance between the loading point and the spine 82 is large. This pressure and the bending moment applied on the spine 82 may cause lumbago. In this invention, most of the load W is directly led to the waist 81 and the distance between the loading point and the spine 82 becomes small. Therefore the pressure and the bending moment on the spine 82 become very small.

More over the load carrying supporter 10 can bear not only the vertical forces but also the horizontal forces because of the high frictional resistance effect. This means that the load carrying supporter 10 can prevent the horizontal slip of the goods.

The load carrying supporter 10 does not project outwardly like the prior art. As shown by FIG. 4 and FIG. 10 A, the tall goods like a refrigerator can be carried without lifting up to the high position.

Referring to FIG. 5 the second embodiment of the invention is explained. The first connector 22 and the second connector 23 are buckle type connector. This enables easy and firm connection. The embodiment is also applied to a waist porch having pockets thereon.

Referring to FIG. 6 and FIG. 7, the third embodiment of the invention is explained. An apron 40 is also used as the attachment 20 in this embodiment. In this embodiment the worker can work fitting on the apron 40. A house worker can carry a baby wearing the apron 40.

Referring to FIG. 8, the fourth embodiment of the invention is explained. The load carrying supporter 10 is applied to a corset used for preventing or treating lumbago. This is useful when a patient has to work even though he has lumbago.

Referring to FIG. 9, the fifth embodiment of the invention is explained. The load carrying supporter 10 is applied to clothes 50 used as a working wear, for example jacket, shirt, vest or trousers. The frictional resistance material 32 may also be used on the reverse side of the clothes.

Referring to FIG. 10, the other method of using the invention is explained. The tall goods like a refrigerator can be carried on the back of the worker's body. Especially this invention is useful for carrying goods without grips.

This invention is useful when carrying a baby, because there is no need to install and un-install a conventional baby strap every time holding and un-holding the baby.

Referring to FIG. 11, the method of measuring the frictional resistance coefficient is explained.

-   -   1 A material to be tested is set on a table facing upward.     -   2 A piece of corrugated cardboard is set on the test material.     -   3 Weight of 400 g is set on the corrugated cardboard.     -   4 Pull the cardboard and measure the force F g when the         cardboard starts to slip.     -   5 The frictional resistance coefficient is F divided by 400.

The corrugated cardboard is chosen, because many goods are contained in the corrugated cardboard box.

Referring to Table 1, the measuring test results are shown.

When the frictional resistance coefficient is over 0.6 and 1 or under 1, the small effect can be obtained.

When the frictional resistance coefficient is over 1 and 1.6 or under 1.6, the sufficient effect can be obtained.

When the frictional resistance coefficient is over 1.6, the most sufficient effect can be obtained.

TABLE 1 The test result of the frictional resistance coefficient and the effect of the invention Test material 6 7 8 9 10 3 4 5 cloth mesh mesh mesh sheet 1 sheet sheet sheet polyester vinyl chloride vinyl chloride vinyl chloride acryl cloth 2 natural ← silicone note2 ← ← ← note3 polyester80% cloth rubber note1 rubber anti-slip anti-slip anti-slip anti-slip anti-slip cotton20% cotton100% plain plate projection plain plate process process process process process Frictional 0.3 0.36 0.54 0.53 0.68 1.05 1.63 1.9 1.93 2.25 resistance coefficient Effect X X X X Δ ◯ ⊚ ⊚ ⊚ ⊚ Effect ⊚: most sufficient effect ◯: sufficient effect Δ: small effect note1: semi-sphere projection ◯ ◯ (5 mm radius) ◯ ◯ note2: micro foam note3: micro suction

Referring to FIG. 12, the sixth embodiment of the invention is explained. The wide belt 21 is made of one piece material which has the frictional resistance effect on both sides thereof. Thus the structure is simple, and this has enough ventilation if the belt 21 is made of mesh type material.

Referring to FIG. 13, the seventh embodiment of the invention is explained. The pocket 34 is added to the above embodiment. This may be used as a waist porch.

INDUSTRIAL APPLICABILITY

This invention is applicable not only to the industrial use but also for the home use.

REFERENCE SIGNS LIST

-   10 is a load carrying supporter. -   20 is an attachment. -   21 is a belt. -   22 is a first connector. -   23 is a second connector -   30 is a load supporter. -   31 is a base. -   32 is a frictional resistance material. -   33 is a support connector -   34 is a pocket. -   40 is an apron. -   50 is clothes -   70 is goods. -   80 is a human body -   81 is a waist -   82 is a spine -   83 is a shoulder -   84 is a arm -   85 is a hand 

1. A load carrying supporter used for carrying goods by hands comprising; an attachment attached to a worker's body; and a load supporter fixed to the attachment, wherein the attachment attached around the worker's waist, and the load supporter has a frictional resistance material facing outward from the worker's body.
 2. The load carrying supporter of claim 1, wherein the frictional resistance material has a higher frictional resistance coefficient than 0.6.
 3. The load carrying supporter of claim 1, wherein the frictional resistance material favorably has a higher frictional resistance coefficient than 1.0.
 4. The load carrying supporter of claim 1, wherein the frictional resistance material most favorably has a higher frictional resistance coefficient than 1.6.
 5. The load carrying supporter of claim 1, wherein the frictional resistance material is selected from the group of soft plastics such as vinyl chloride, polyester, elastomer, synthetic rubber, silicone rubber, urethane rubber or natural rubber.
 6. The load carrying supporter of claim 5, wherein an anti-slip process is added to the frictional resistance material.
 7. The load carrying supporter of claim 6, wherein the anti-slip process includes micro foam.
 8. The load carrying supporter of claim 1, wherein the load carrying supporter is applied to a waist belt.
 9. The load carrying supporter of claim 1, wherein the load carrying supporter is applied to a waist porch.
 10. The load carrying supporter of claim 1, wherein the load carrying supporter is applied to a corset.
 11. The load carrying supporter of claim 1, wherein the load carrying supporter is applied to an apron.
 12. The load carrying supporter of claim 1, wherein the load carrying supporter is applied to clothes. 